Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

This law describes the inertial nature of any object. It says that any object has inertia on account of its state of motion and that inertia remains unchanged until the object is acted upon by an external force.

For example, on a frictionless surface, a ball would continue to remain at rest until pushed and once in motion, it will continue moving in a straight line until a force causes it to stop or change direction.

The acceleration of an object is directly proportional to the force applied to that object, in the direction of the force.

This law is expressed by the equation, F = ma, where F is the net force acting on an object of mass m with acceleration a. Alternatively, if an object of mass m has an acceleration a (change in velocity with time) then the net force F acting upon that object is the product of its mass and acceleration.
And also accelerates as it is moving.